package md.frolov.bible;

import java.net.MalformedURLException;
import java.net.URL;

import md.frolov.bible.model.Book;
import md.frolov.bible.model.Category;
import md.frolov.bible.model.Chapter;
import md.frolov.bible.model.Language;
import md.frolov.bible.model.Module;

import org.eclipse.core.runtime.IPath;
import org.eclipse.core.runtime.Platform;
import org.eclipse.jface.resource.ImageDescriptor;
import org.eclipse.jface.resource.ImageRegistry;
import org.eclipse.swt.graphics.Image;
import org.eclipse.ui.ISharedImages;
import org.eclipse.ui.PlatformUI;
import org.eclipse.ui.plugin.AbstractUIPlugin;
import org.osgi.framework.BundleContext;

/**
 * The activator class controls the plug-in life cycle
 */
public class Activator extends AbstractUIPlugin {
	private IPath workspace;
	private ImageRegistry imgRegistry;
	
	// The plug-in ID
	public static final String PLUGIN_ID = "md.frolov.bible";

	// The shared instance
	private static Activator plugin;
	
	/**
	 * The constructor
	 */
	public Activator() {
		workspace = Platform.getLocation();
	}
	
	public IPath getWorkspace(){
		return workspace;
	}

	/*
	 * (non-Javadoc)
	 * @see org.eclipse.ui.plugin.AbstractUIPlugin#start(org.osgi.framework.BundleContext)
	 */
	public void start(BundleContext context) throws Exception {
		super.start(context);
		plugin = this; 
	}

	/*
	 * (non-Javadoc)
	 * @see org.eclipse.ui.plugin.AbstractUIPlugin#stop(org.osgi.framework.BundleContext)
	 */
	public void stop(BundleContext context) throws Exception {
		plugin = null;
		super.stop(context);
	}

	/**
	 * Returns the shared instance
	 *
	 * @return the shared instance
	 */
	public static Activator getInstance() {
		return plugin;
	}

	/**
	 * Returns an image descriptor for the image file at the given
	 * plug-in relative path
	 *
	 * @param path the path
	 * @return the image descriptor
	 */
	public static ImageDescriptor getImageDescriptor(String path) {
		return imageDescriptorFromPlugin(PLUGIN_ID, path);
	}
	
	public void putImage(Class clazz, String url){
      ImageDescriptor imgd = ImageDescriptor.createFromURL(getBundle().getEntry(url));
      getImageRegistry().put(clazz.getName(), imgd);
	}
	
	@Override
	protected void initializeImageRegistry(ImageRegistry reg) {
		putImage(Chapter.class, "icons/chapter.gif");
		putImage(Book.class, "icons/book_blue.gif");
		putImage(Module.class, "icons/book_brown.gif");
		putImage(Category.class, "icons/books_brown.gif");
		putImage(Language.class, "icons/chapter.gif");
	}

	public static Image getImage(Class clazz){
		return getImage(clazz.getName());
	}
	
	public static Image getImage(String key){
		Image img = Activator.getInstance().getImageRegistry().get(key);
		if(img==null) img=PlatformUI.getWorkbench().getSharedImages().getImage(ISharedImages.IMG_OBJ_ELEMENT);
		return img;
	}
}
